摘要
为了厘清雅店煤矿瓦斯赋存规律,以瓦斯地质理论为依据,探讨了雅店煤矿地质构造特征、煤层埋藏条件、煤层围岩特性和煤层厚度等因素对瓦斯赋存的控制作用,确定了雅店煤矿瓦斯赋存的主控因素。研究结果表明,雅店煤矿煤系地层遭受了长期的抬升剥蚀,瓦斯风化带较深,瓦斯含量普遍较低;地质构造简单,褶皱断层不发育,地质构造对瓦斯赋存的控制作用不明显;而煤层瓦斯赋存的主控因素为埋藏条件和煤层厚度,采用煤层底板标高和上覆基岩厚度进行瓦斯含量预测可以取得较好的效果。研究结果能为雅店煤矿制定高效精准的瓦斯防治措施提供更为科学准确的理论依据。
In order to study the gas occurrence law of Yadian Coal Mine,based on the gas geological theory,the control effect of geological structure characteristics,coal seam burial conditions,coal seam surrounding rock characteristics and coal seam thickness of Yadian Coal Mine on gas occurrence is quantitatively studied,while the main control factors of gas occurrence are identified.The results show that:the coal measures strata in the mine suffered from multiple periods of uplift and denudation,resulting in the deep gas weathering zone and the low gas content;The geological structure of the mine is simple where the fault is not developed and the geological structure has no obvious control over the gas occurrence;The main controlling factors of gas occurrence in the coal seam are burial conditions and coal seam thickness.Better results can be achieved using the floor elevation of the coal seam and the thickness of the overlying bedrock to predict the gas content.The research results can provide more scientific and accurate theoretical basis for Yadian Coal Mine to formulate efficient and accurate gas control measures.
作者
董振波
李德仁
赵海波
DONG Zhenbo;LI Deren;ZHAO Haibo(Shaanxi Huabin Yadian Coal Industry Co.,Ltd.,Xianyang 713500,China;CCTEG Shenyang Research Institute Co.,Ltd.,Fushun 113000,China)
出处
《陕西煤炭》
2024年第2期48-52,90,共6页
Shaanxi Coal
关键词
瓦斯防治
瓦斯赋存
地质控制
瓦斯含量
赋存特征
主控因素
gas prevention
gas occurrence
geological control
gas content
occurrence characteristics
main controlling factors
